PeakLab
TelecommunicationsGrand groupeDelivered October 2025

E-commerce platform & telecom services

+35%
Conversion rate
+22%
Average cart value
4.5/5
User satisfaction

Global context

Celeste is a B2B telecom operator offering connectivity, cloud and cybersecurity solutions to businesses. The group wanted to modernize its online sales platform to provide a unified buying experience across all its services, with an optimized customer journey.

Problems and challenges

Fragmented offering

The group's different services were presented on separate interfaces, creating a fragmented user experience and a complex buying journey.

Technical modernization

The existing infrastructure could no longer meet the performance and user experience requirements of modern B2B clients.

Positioning and strategy

The challenge was to create a single platform that unifies all services while offering a smooth and modern buying journey.

1

UX and technical audit

Analysis of existing user journeys and identification of friction points

2

Design and architecture

Design of a unified architecture and consistent user experience

3

Development

Implementation of the new platform with modern technologies and back-office integrations

The technical solution

Unified e-commerce platform

Centralized interface bringing together all group services with a single cart and optimized checkout funnel.

Service configurator

Configuration tool allowing clients to compose their custom offer with real-time pricing.

Integrated back-office

Order management system connected to internal tools for automated processing.

Stack technique

ReactTypeScriptNode.jsPostgreSQLDocker

Results achieved

Indicateur
Avant
Après
Gain
Conversion rate
2.1%
2.8%
+35%
Average cart value
Baseline
+22%
+22%
User satisfaction
3.2/5
4.5/5
+40%
+35%
+35% conversion
+22%
+22% average cart
NPS+
Improved NPS

The new platform significantly improved customer experience and commercial performance for the group.

Excellent DEV. Complex Back and Front mission. The team managed the complexity of a multi-service project with rigor and efficiency.
Fabrice Ducarme
Fabrice Ducarme
Project Manager at Celeste

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